Telescope sight mount for shoulder arms



0d. 12, 1948. L. E. WHITTEMORE TELESCOPE SIGHT MOUNT FOR SHOULDER ARMS '2 Sheets-Sheet 1 Filed June 20, 1945 173311022701 Les\ {2 EW h'IHem eve.

0d. 12, 1948. L, wHlTTEMORE 2,451,266

TELESCOPE SIGHT MOUNT FOR SHOULDER ARMS 2 Sh eets-Sheet ,2

Filed June 20, 1945 Jzazfezzior Les feEWhHtemove Patented @ct. 12, 1948 EJNH'FED STATES PATENT" OF ERIE TELESGOPE SIGHT MOUNT FOR SHOULDER ARMS 3 Claims.

This invention relates to a telescope sight mount for breech loading shoulder arms of the top ejection type, and one object ofthe invention is to provide a novel mounting for the-telescope sight which is so constructed that when the telescope sight is in operative position, it is situated directly over the-barrelahd the receiver but when the bolt is retracted preparatory to feeding a fresh cartridge into the firing-chamber, the telescope sight is moved positively laterally to one side of the top opening through which the empty shell is ejected, the mounting being also constructed so that when the bolt is moved forwardly to feed a cartridge into the firing chamber, the telescope sight will be automatically restored positively to its operative position.

Other objects of the invention are to provide various improvements intelescope sight mount-- ingsas will be hereinafter set" forth.

In the drawings herein I have illustrated a selected embodiment of my invention.

Fig. 1 is a fragmentary view of a breech loading fire arm equipped with my improved telescope sight mounting, said i figure showing the bolt in its forward, or closedposition and the telescope sight in --its operative position.

Fig. Z'isaview similar to Fi'g. 1 but showing thebolt retracted and the telescope sight in its inoperative position.

Fig. 3 is a section on thelines:3 3 Fig.1.-

Fig. 4 isa sectiononthe line 4- Fig. 2,"the

bolt" 5 being shown in elevation;-

Fig. 5 is a view similar to Fig. position of parts just before the-bolt reaches its forward operative position-and illustrating. the manner in which the telescope sight is locked in its operative position.

Fig. 6 is a view of the telescope'sight mountingwith the telescope holder portion in its. open" position.

Fig. 7 is a section on the line llFig. 2. Fig. 8- is a top plan view of the bolt.

In the drawings l shoulder arm of the well-known Winchester type said shoulder arm'having the usual stock-2,"

barrel receiver having a top opening for the ejection of the fired cartridge shells. and the'" reciprocating'bolt 5.

In this type of breech loading un, the bolt'is given its reciprocating movement by means: of a lever member-'6 which is wingablefrom" theclosed position'shown in Fig. 1 to the open'position shown in Fig. 2.

1 indicates a telescope sight which may'have any suitable or usual construction.

1 showing the i shows a breech loading The means for mounting the sight on the fire arm comprises a supporting which is adapted to be secured to on'e'side of the receiver'fi'by means of suitable screws 9, and a telescope holding member H] which is pivotally connectedto the supporting bracket 8. The telescope supporting member 10 is provided with two telescope clamping members I] which have a clamping engagement with the telescope sight I.

The supportingbra-cket 8 is" shown as" having two upstanding ears I23 one'ateach endthereof, and the telescope holding -member with an elongated hub portion I3 which is received' between the said ears, said hub portion having an axial bore which is alined with aper-" tures in the ears [2 to receive a; pintle rod I4 by which the member ill'is pivotally connected to the bracket member 8.

The telescope supporting member ill-can thus swing about the pintle M from its operativeposh tion shown in Figs; 1 and 3m which the telescope sight is located directly over the barrel 3 and over the top opening. in the receiver 4 through which the shells are ejected, to the-open or inoper'ative position shown in Fig; 4 wherein the telescope l is located at one side'of both'the barrel and the top opening throughwhich the shells are ejected. When the telescope sightis in its operative position, the edge Id of the telescope supporting member ID rests receiver 3 as indicated'iri Fig. 1.

For swinging the telescope supporting member I'd from-its open to its closed position andvice versa the elongated hubl3 '0f the telescope" supporting member iii is provided with a'cam groove lt in'which'operates the outer end'of'an arm I! extending from the'bolt 5'. The groove lii'has a straight portion l8 at its forward end and' another straight portion iEi-at its rear end and a spiral or cam portion 2flintermediateits-ends; said groove H5 has a length to' accommodate the full travel of the bolt 5 and the arm or lugl '1; other words, said groove hasa-leng'th'which is 'at least' as great as the distance which the-bolt moves in either direction. Thearm" '1 l isshownas located 'near the front end of the bolt and whenthe'bolt is in its forward position said arm is 'located-inthe straightportion 18 of the-slot It. When thebolt is retracted the movement of thearm-orlug-ll through the camportion Eiiof theslot will cause the 1 telescope supporting a member I il to turn positively about its pivotal support into its open posi-' tion shown in Fig; 4, in-which position the telescope supportingmember Hl'andthe telescope=are at one-sideof the'open-top of the-receiver. Since bracket member 8' I0 is provided on the top" of the" the arm or lug I I is continuously confined within the groove I 6, said groove and arm serve not only to give the telescope-supporting member III a positive turning movement in each direction, but it also serves to hold the supporting member I ll in raised or inoperative position, when the bolt is in its retracted position.

This turning or swinging movement of the telescope sight from its operative to its inoperative position occurs during the time that the end of the arm or lug ll is moving through the cam or spiral portion 28 of the slot I6, and hence before the bolt has completed its backward movement. During the final backward movement of the bolt, the arm or lug Il travels in the straight portion I!) of the slot IE and thereby retains the telescope supporting member II] in its open or inoperative position.

When the bolt is moved forwardly, the arm or lug ll travels first through the straight portion I 9 of the slot and then through the spiral or cam portion 20, during which the telescope supporting member ID with the telescope sight is swung back into its operative position from its open position, and during the final forward movement of the bolt 5, the arm or lug I! travels in the straight portion I 8 of the slot.

Since the slot I6 is a closed slot, the position of the telescope supporting member ID is positively controlled at all times by the engagement of the arm I! in the slot and the swinging movement of the telescope supporting member I E1 in both directions is a positive movement.

Means are provided in addition to the engagement of the arm or lug I! in the portion I 8 of the slot for locking telescope supporting member ID in its operative position when the bolt is in its forward position.

For this purpose the bolt is provided with a locking ear 2! adapted to enter a groove 2| with which the telescope supporting member I l! is provided during the final forward movement of the bolt and While the arm or lug I! is traveling in the straight portion I8 of the slot I6.

It will be understood that the telescope supporting member I I! will have completed its swinging movement from open position shown in Fig. 4 to closed position shown in Fig. 3 during the time that the arm or lug I1 is passing through the spiral or cam portion 20 of the slot l6. By the time that the lug I! has passed through the spiral portion 20 of the slot I6 and has entered the straight portion I8 of the slot, the locking ear 20 has been brought into a position where it is just about ready to enter the groove 2! as shown in Fig. 5. During the final forward movement of the bolt, the locking car 20 enters the groove 2| and thus locks the telescope supporting member I 9 firmly in its operative position.

The telescope supporting member I I] is shaped to present two end portions 23 each of which has a groove 2| thereon, and I propose to provide the bolt with two locking ears 20 one of which enters the groove 21! in one end portion 23 and the other of which enters the groove 2! in the other end portion 23.

The arm or lug I1 and the locking ears 20 may be made integral with the bolt or these elements may be formed on a plate or attachment 24, which is rigidily secured to the top of the boltin some suitable way as by means of screws 25 as shown in Fig. 8.

I have provided herein means whereby the pintle It can be readily removed whenever it is desired to remove the telescope sight and its supporting member II] from the fire arm. For this purpose I have provided the pintle I4 with a groove 26 adapted to receive a spring retaining element 21 which is secured to the supporting bracket 8, The resiliency of the spring member 21 normally holds it in the groove 26 and thus locks the pintle in position. When it is desired to remove the telescope sight and its supporting member It the spring element 21 may be moved laterally to disengage it from the groove 26 thus freeing the pintle pin so that it can be readily removed. The ear I2 of the supporting bracket 8 with which the spring member 21 is associated is provided with a slot to allow the disengaging movement of said spring.

The means for securing the telescope sight to its holding member ID may be such as to provide for lateral adjustment of the telescope. As herein shown, the rear clamping member I I is connected to the holding member ID by means of a single centrally located screw 28 and the front clamping member II as connected by a screw 29 to a disk 30 which is located in a recess formed in the under side of the holding member I0, said screw having an eccentric relation to the disk 30 so that when the screw is loosened, the disk may be turned thereby to shift the clamping member I I laterally. This provides means for readily making lateral adjustment of the telescope sight, and by connecting the rear clamping member to the holding member by the eccentric disk means such as illustrated for the front clamping member a very fine lateral adjustment may be made.

I claim:

1. A top ejecting breech loading fire arm having a barrel, a receiver open at the top for the ejection of empty shells, a reciprocating bolt, a telescope holding member having means to support a telescope sight and provided with an elongated hub portion, means pivotally connecting said hub portion to the receiver to turn about an axis parallel to the barrel, said hub portion having a cam groove which has a length no less than the distance the bolt travels in either direction, and a finger carried by the bolt and confined and operating in said groove whereby movement of the bolt in either direction operates through said finger and groove to turn the telescope holding mem-- ber positively about its axis.

2. A top ejecting breech loading fire arm having a barrel, a receiver open at the top for the ejection of empty shells, a reciprocating bolt, a. telescope holding member having means to support a telescope sight and provided with an elongated hub portion, means pivotally connecting said hub portion to the receiver to turn about an axis parallel to the barrel, said hub portion having a cam groove extending longitudinally thereof and provided with a, straight portion at each end and an intermediate cam portion, said groove having a length at least as long as the distance the bolt travels in either direction, and an arm carried by the bolt and operating in said groove whereby movement of the arm in either direction through the cam portion of the slot operates to turn the telescope holding member positively about its axis.

3. A top ejecting breech loading fire arm having a barrel, a receiver open at the top for the ejection of empty shells, a reciprocating bolt, a telescope holding member having means to sup port a telescope sight and provided with an elongated hub portion, means pivotally connecting said hub portion to the receiver to turn about an axis parallel to the barrel, said hub portion 5 having a cam groove extending longitudinally thereof and which has a length at least as great as the traveling movement of the bolt, the forward end of which groove is straight and parallels said axis, an arm carried by the bolt and continuously confined and operating in said groove whereby movement of the bolt in one direction positively turns the hub and swings the telescope-holding member from operative to inoperative position and movement of the bolt in the other direction positively turns the hub and swings the telescope-holding member from inoperative to operative position, said telescopeholding member having a groove and the bolt having a, locking lug adapted to enter said groove while the arm is moving in the straight portion of the slot thereby to assist in looking said holding member in its operative position.

LESLIE E. WHITTEMORE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 10 Number Name Date 1,083,288 Lowe Jan. 6, 1914 2,115,618 Carl Apr. 26, 1938 FOREIGN PATENTS 5 Number Country Date 142,545 Germany July 22, 1903 

